[Q] HELP!!! topic

Hi all,

Right I'll get straight to the point...my phone screen has zoomed into blind-person-mode and I cant seem to sort the problem out or unlock the phone (screen lock pin number) to get into settings :( ????.

This morning it was working fine and for the past couple of days (since having a new battery, I have not needed to charge) it has worked brilliantly. I locked my phone screen, put it into my pocket and didn't use it all day until I wanted to check the time as it was nearing the end of the day and then BOOM, screen is massive and doesn't select anything other than emergency call :(

I have:

Re-flashed SlimBean after a clean wipe - still zoomed
Flashed PA 4.4.4 (as I know that works) after clean wipe - still zoomed
Reset everything and re-flashed PA 4.4.4 - still zoomed :s
I cant even do the initial setup as its too zoomed to select anything.

I'm running outta options and I'm starting to worry a little too, I just got my phone up and running after the old battery swelled up as well and have missed this phone, now it looks like I am back to square 1 :(

If anyone can help it would be greatly appreciated.

Things you might like to know:

Phone - Samsung Galaxy S3 mini GT-i8190N
Current ROM - PA 4.4.4
Replaced battery with a larger one from Amazon (MBUYNOW 4000mah) - I don't think its that which has caused issue as it has been fine for a couple of days.

All clean wipes have been performed eg. dalvik, factory, cache yadda yadda

Can anyone help me please???

p.s I cant do a screen shot to show you all either, just imagine the icons and numbers are too big for the screen ;)